... the roof and wall panel, included both types:a. Heat-Insulating material( EPS, Glass wool, Rockwool, PU, etc.)they have different thickness ... , color, type, etc.b. Single color corrugated steel sheet( Steel Material: Aluminum- Zinc sheet):They have different thickness( 0.3-0 ... .7mm), color, type, etc. C. You can choose freely the material of door and windows( Aluminum alloy and PVC) D. We ...